Development and characterization of Yb-Er laser glass for high average power laser diode pumping |
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Authors: | G Karlsson F Laurell J Tellefsen B Denker B Galagan V Osiko S Sverchkov |
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Institution: | (1) Department of Physics, Royal Institute of Technology, 106 91, Stockholm, Sweden, SE;(2) General Physics Institute, Laser Materials and Technology Research Center Russian Academy of Sciences, 119991 Moscow, Russia, RU |
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Abstract: | A new strong erbium laser glass (SELG) based on a boro-alumo-phosphate composition is reported. We discuss the synthesis and
chemical properties together with spectroscopic and thermo-mechanical data. The new glass composition shows excellent laser
performance and withstands high-average power pump radiation. We present laser results at 1.54 μm from flashlamp and laser
pumping. In tests with laser-diode pumped Q-switched Er-Yb microchip lasers, we have achieved up to 150 mW of average output
power and generated 1.2 kW in peak power. Co2+:MgAl2O4 was here used as the saturable absorber.
Received: 21 December 2001 / Revised version: 14 April 2002 / Published online: 8 August 2002 |
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Keywords: | PACS: 42 70 Jk 42 70 Ce 42 60 Gd |
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